Document processing apparatus having a communication/facsimile function with selective memory switching

A document processing method for use in a document processing apparatus having a document processing function and a communication function, comprising the steps of:

• storing data in a first memory means;
• storing data in a second memory means;
• when the communication function is executed during execution of the document processing function, saving data, which relates to the document processing and which is stored in the first memory means, in the second memory means;
• performing the communication function by using the first memory means;
• when performance of the communication function is ended, restoring the data which has been saved in the second memory means in said saving step, to the first memory means;
• and
• selecting execution/non-execution of said saving step.

A document processing apparatus having a document processing function and a facsimile function, comprising:

• first memory means for storing data;
• second memory means for storing data;
• selection means for selecting the facsimile function during execution of the document processing function;
• saving means for, when said selection means selects the facsimile function, saving data, which relates to the document processing, and which is stored in said first memory means, to said second memory means;
• means for performing the facsimile function by using said first memory means;
• restoration means for, when performance of the facsimile function is ended, restoring the data saved in said second memory means by said saving means to said first memory means;
• and
• another selection means for selecting between execution/non-execution of saving by said saving means.

A document processing method for use with a document processing apparatus having a document processing function and a facsimile function, comprising the steps of:

• storing data in a first memory means;
• storing data in a second memory means;
• selecting the facsimile function during execution of the document processing function;
• when the facsimile function is selected in said selecting step, saving data, which relates to the document processing, and which is stored in the first memory means, to the second memory means;
• performing the facsimile function by using the first memory means;
• when performance of the facsimile function is ended, restoring the data saved in the second memory means in said saving step, to the first memory means;
• and
• a separate selecting step, of selecting execution/non-execution of said first-mentioned saving step.

A document processing method for use with a document processing apparatus having a document processing function and a facsimile function, comprising the steps of:

• storing data in a first memory means;
• storing data in a second memory means;
• selecting the facsimile function during execution of the document processing function;
• when the facsimile function is selected in said selecting step, saving data, which relates to the document processing, and which is stored in the first memory means, to the second memory means;
• performing the communication function by using the first memory means;
• when performance of the facsimile function is ended, restoring the data saved in the second memory means in said saving step, to the first memory means;
• and
• a separate selecting step, of selecting execution/non-execution of said first-mentioned saving step, wherein said separate selecting step is performed using a switch for selecting execution/non-execution of the facsimile function.